Keeping the same character, with the same face and identity, across many AI-generated images.
Character consistency is the ability to reproduce the same character, with the same face, features, and identity, across multiple AI-generated images. Without it, each generation produces a slightly different person, which makes AI unusable for stories, mascots, or recurring models.
Most general image tools lack memory, so they cannot hold a character steady from one image to the next. Systems like LUNA solve this by saving a character as a reusable element, so the same identity appears correctly in every new scene, outfit, or setting.
Most tools treat each generation independently with no memory, so the same prompt yields a different face each time. Consistency requires saving and reusing a fixed identity.
Brand mascots, recurring models, comics, explainer series, and any content where the same person needs to appear across many images.